Vent for liquid-containing tanks, &amp;c.



the drawings by letter7 A VIRGIL V. OVERTURF, 0F NEWARK,

OHIO.

VENT FOR LIQUID-CONTAINING TANKS, &c.

Specification of Letters Patent.

Patented Aue'. 23, 1910.

Application filed May 19, 1910. Serial No. 562,328.

l To all -whom t may concern:

Be 'it known that I, Vmon, V. OvERTURr, citizen of the United States,residing at Newark, in the county of Licking and State of Ohio, haveinvented certain ne and useful Improvements in Vents forLiquid-Containing Tanks, &c.; and l do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same, reference being had to theaccompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification. y

rthis invention relates to new and useful improvements in vents forliquid containing tanks, etc., and the object in view is to produce asimple and efficient device of this nature so constructed that, as theliquid is drawn from the tank, the space occupied by the liquid will befilled automatitailly with air, means being provided for protecting thedevice to prevent rain or any foreign matter from entering the vent.

The invention comprises various details of construction and combinationsand arrangements of parts which will be hereinafter fully described andthen specifically defined in the appended claim.u

I illustrate my invention in the accompanying drawings, in which Figurel is a sectional view of the device shown as applied to a tank.v Fig. 2is a top plan view of the vent, and Fig. 3 is a sectional vie-wbn line3-3 of Fig. l.

Reference now vbeing had to the details of containing tank having athreaded opening A formed therein for the reception of the valve plug Bwhich has a threaded portion engaging the threads of said aperture and ashoulder B adapted to rest against the top of the tank. Mounted withinsaid valve plug or casing is a check valve C having a stem C movablewithin an aperture in the integral disk portion F ofthe casing. Saidvalve has a beveled edge held against the beveled seat D by means of acoil spring E upon said stein and interposed between the valve and thedisk portion l?, which is prodesignates a liquid vided with a series ofperforations'K where-- by atmospheric air is allowed to enter, asindicated by arrows, and pass down through the interior passageway ofthe plug into the tank to replace liquid as it may be drawn from thetank. A nut l is mounted upon the threaded end of the stem C and servesto hold the valve in place and also affords means for regulating thetension of the sprii'ig E. n

A convexed cap. designated b v letter N is provided with interiorthreads N adjacent-f' to its. marginal edge adaptedy to engage thethreaded circumference l", as shown, and serves as a means to preventrain or any foreign matter from entering the valve casing. The lowermarginal edge of said cap' is lgirought to a sharp circular outlinededge t), forming a drip and which extends beyond the circumference ofthe'shank portion of the valve plug. In order to allow the cap to bescrewed on and off, an angular outlined projection Q is provided for thereception of a wrench.

By the provision of a vent for tanks as shown and described, it will benoted that a simple and efficient means is afforded whereby rain andother foreign matter may be prevented from entering the-tank as theliquid is drawn otl'l therefron'l and any liquid falling upon theconvexed surface will drain otl" from the sharp drip edge of the cap.

lVhat I claim' to be new is A vent for tanks comprising` a valveI casinghaving a threaded circumference adapted to engage the threaded openingin a tank, said casing having a constricted portion with its upper endof larger diameter than the body portion of the casing and provided witha series of perforations, a dome-shaped covering fitted about said pro'jecting portion of the casing and its lowei` end beveled, and a.cl1eckvalve positioned within said casing, as shown and described.

In testimony whereof I bereunto affix my signature in the presence oftwo witnesses,

'VIRGL V, OVER-TURF.

lVitnesses: l

S. L. Janes, .Lisi-nn Jonas.

of the disk portion

